I asked him how to say a greeting in his language, so he taught me to say "Atesei" (ah-tes-ay), which means "Hi, how are you all." The response is then "Eye" (ay-yay), which means "fine" or "we are doing good."
Twi is pronounced in a way I have never heard before. It sounds something like Tschee, although no American sound can parallel it, which is why English speakers are told to say "Akan" instead.